Congrats on the approval! As @FinStar stated, unless you are putting a lot of charges through your other BoA Card, BoA UW will most likely not budge on the SL. I would recommend using the card heavily to show usage and 91 days from now, you'll have the SP CLI available. That may be a better method in moving your CL up to something more sufficient. Plus, the BoA Travel Rewards has a SUB as well so it would definitely be worthwhile.